幸运的是,碰撞假说是可验证的。
碰撞假说的一个问题是,以这种方式形成的卫星是如何在月球现在的近乎圆形的轨道上运行的。
One problem with the collision hypothesis is the question of how a satellite formed in this way could have settled into the nearly circular orbit that the Moon has today.
大碰撞假说能够解释月质学的许多方面内容,包括月球核心的大小、密度、月岩的同位素组分等。
The Giant Impact Theory explains many aspects of lunar geology including the size of the Moon'score and the density and isotopic composition of moon rocks.
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